mavlink: fixed build with uart resend

libraries/GCS_MAVLink/include/mavlink/v1.0/mavlink_helpers.h

@@ -137,7 +137,7 @@ MAVLINK_HELPER void _mav_finalize_message_chan_send(mavlink_channel_t chan, uint
  * @brief re-send a message over a uart channel
  * this is more stack efficient than re-marshalling the message
  */
-MAVLINK_HELPER void mav_uart_resend(mavlink_channel_t chan, const mavlink_message_t *msg)
+MAVLINK_HELPER void mavlink_uart_resend(mavlink_channel_t chan, const mavlink_message_t *msg)
 {
 	uint8_t ck[2];
 
@@ -147,7 +147,7 @@ MAVLINK_HELPER void mav_uart_resend(mavlink_channel_t chan, const mavlink_messag
 	MAVLINK_START_UART_SEND(chan, MAVLINK_NUM_NON_PAYLOAD_BYTES + msg->len);
 	_mavlink_send_uart(chan, (const char *)&msg->magic, MAVLINK_NUM_HEADER_BYTES);
 	_mavlink_send_uart(chan, _MAV_PAYLOAD(msg), msg->len);
-	_mavlink_send_uart(chan, ck, 2);
+	_mavlink_send_uart(chan, (const char *)ck, 2);
 	MAVLINK_END_UART_SEND(chan, MAVLINK_NUM_NON_PAYLOAD_BYTES + msg->len);
 }
 

libraries/GCS_MAVLink/include/mavlink/v1.0/protocol.h

@@ -60,6 +60,7 @@ MAVLINK_HELPER uint16_t mavlink_finalize_message(mavlink_message_t* msg, uint8_t
 MAVLINK_HELPER void _mav_finalize_message_chan_send(mavlink_channel_t chan, uint8_t msgid, const char *packet, uint8_t length);
 #endif // MAVLINK_CRC_EXTRA
 MAVLINK_HELPER uint16_t mavlink_msg_to_send_buffer(uint8_t *buffer, const mavlink_message_t *msg);
+MAVLINK_HELPER void mavlink_uart_resend(mavlink_channel_t chan, const mavlink_message_t *msg);
 MAVLINK_HELPER void mavlink_start_checksum(mavlink_message_t* msg);
 MAVLINK_HELPER void mavlink_update_checksum(mavlink_message_t* msg, uint8_t c);
 MAVLINK_HELPER uint8_t mavlink_parse_char(uint8_t chan, uint8_t c, mavlink_message_t* r_message, mavlink_status_t* r_mavlink_status);